20453805

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{26737}}^1$

素因数の和:26765

約数の個数: 24

約数和(自身を含む): 37540152

約数和(自身を除く): 17086347

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 85, 153, 255, 765, 26737, 80211, 133685, 240633, 401055, 454529, 1203165, 1363587, 2272645, 4090761, 6817935, 20453805]

約数ペア:

[(1, 20453805), (3, 6817935), (5, 4090761), (9, 2272645), (15, 1363587), (17, 1203165), (45, 454529), (51, 401055), (85, 240633), (153, 133685), (255, 80211), (765, 26737)]